<template>
  <div>
    <sub-title :subTitle="'添加参数'" :isRefresh="false"></sub-title>
    <div class="body">
      <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="200px" class="form">
        <el-form-item label="参数名称: " prop="paramName">
          <el-input v-model="ruleForm.paramName"></el-input>
        </el-form-item>
        <el-form-item label="商品类型: " prop="styleId">
          <el-select v-model="ruleForm.styleId" placeholder="请选择类型" class="search-input">
            <el-option :value="item.id" :label="item.styleName" v-for="item in typeList"></el-option>
          </el-select>
        </el-form-item>
        <!--<el-form-item label="相同属性值的商品是否关联: " prop="name">
          <el-radio v-model="ruleForm.name" label="1">是</el-radio>
          <el-radio v-model="ruleForm.name" label="2">否</el-radio>
        </el-form-item>-->
        <el-form-item label="参数是否可选: " prop="paramSelect">
          <el-radio v-model="ruleForm.paramSelect" :label="0" disabled>唯一属性</el-radio>
          <el-radio v-model="ruleForm.paramSelect" :label="1" disabled>单选属性</el-radio>
          <el-radio v-model="ruleForm.paramSelect" :label="2" disabled>复选属性</el-radio>
          <p class="form-tips">选择"单选/复选属性"时，可以对商品该属性设置多个值，同时还能对不同属性值指定不同的价格加价，用户购买商品时需要选定具体的属性值。选择"唯一属性"时，商品的该属性值只能设置一个值，用户只能查看该值。</p>
        </el-form-item>
        <el-form-item label="属性值: " prop="paramList">
          <!--<el-input type="textarea" :rows="5" v-model="ruleForm.propertyList"></el-input>
          <p class="form-tips">多个属性请用逗号分隔,例如(红色, 黑色, 白色)</p>-->
          <el-tag
              :key="tag"
              v-for="tag in dynamicTags"
              closable
              :disable-transitions="false"
              @close="handleClose(tag)">
            {{tag}}
          </el-tag>
          <el-input
              class="input-new-tag"
              v-if="inputVisible"
              v-model="inputValue"
              ref="saveTagInput"
              size="small"
              @keyup.enter.native="handleInputConfirm"
              @blur="handleInputConfirm"
          >
          </el-input>
          <el-button v-else class="button-new-tag" size="small" @click="showInput">添加属性值</el-button>
        </el-form-item>
        <!--<el-form-item label="是否支持手动新增：" prop="desc">
          <el-radio v-model="ruleForm.name" label="1">是</el-radio>
          <el-radio v-model="ruleForm.name" label="2">否</el-radio>
        </el-form-item>-->
        <el-form-item label="属性排序: " prop="paramSort">
          <el-input v-model="ruleForm.paramSort" type="number"></el-input>
          <p class="form-tips">排序级别最高的属性可单独上传属性图片</p>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="submitForm('ruleForm')">提交</el-button>
          <el-button @click="back">返回</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
  import subTitle from "@/components/subTitle"
  import mixin from "@/utils/mixin"
  export default {
    name: "addProp",
    mixins: [mixin],
    components: {
      subTitle,
    },
    data(){
      let validParams = (item, value, callback) => {
        if (this.dynamicTags.length == 0){
          callback(new Error('请添加属性值'));
        } else if (this.ruleForm.paramSelect == 0 && this.dynamicTags.length > 1){
          callback(new Error('唯一属性只能添加一个属性值'));
        } else{
          callback();
        }
      };
      return{
        inputValue: '',
        inputVisible: false,
        dynamicTags: [],
        typeList: [],
        ruleForm: {
          paramName: '',
          styleId: '',
          paramSelect: 1,
          paramList: '',
          paramSort: '',
        },
        rules: {
          paramName: [
            { required: true, message: '请输入参数名称', trigger: 'blur' },
            { max: 20, message: '长度必须小于20个字符', trigger: 'blur' }
          ],
          styleId: [
            { required: true, message: '请选择商品类型', trigger: 'change' },
          ],
          paramList: [
            { validator: validParams, required: true, trigger: 'change'  },
          ],
        }
      }
    },
    mounted(){
      this.$http.post("merchantGoodsStyle/merchant_goods_type_list").then((res) => {
        this.typeList = res;
        if (this.$route.query.id){
          this.isAdd = false;
          this.$http.post("merchantGoodsParam/merchant_goods_type_by_id", {
            id: this.$route.query.id
          }).then((res) => {
            this.$set(this.ruleForm, 'paramName', res.paramName);
            this.$set(this.ruleForm, 'styleId', res.styleId);
            this.$set(this.ruleForm, 'paramSelect', res.paramSelect);
            this.$set(this.ruleForm, 'paramSort', res.paramSort);
            if (res.paramList.length > 0){
              this.dynamicTags = res.paramList.split(',');
            }
          })
        }
      });
    },
    methods: {
      submitForm(formName) {
        this.$refs[formName].validate((valid) => {
          if (valid) {
            this.$set(this.ruleForm, 'paramList', this.dynamicTags.join(','));
            if (this.isAdd){
              this.addEdit('merchantGoodsParam/merchant_goods_type_add', this.ruleForm);
            } else {
              this.ruleForm.id = this.$route.query.id;
              this.addEdit('merchantGoodsParam/merchant_goods_type_update', this.ruleForm);
            }
          } else {
            return false;
          }
        });
      },
      afterAddEdit(){
        setTimeout(() => {
          this.back();
        }, 500)
      },
      handleClose(tag) {
        this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1);
      },
      showInput() {
        this.inputVisible = true;
        this.$nextTick(_ => {
          this.$refs.saveTagInput.$refs.input.focus();
        });
      },
      handleInputConfirm() {
        let inputValue = this.inputValue;
        if (inputValue) {
          if (this.dynamicTags.indexOf(inputValue) < 0){
            this.dynamicTags.push(inputValue);
          }
        }
        this.inputVisible = false;
        this.inputValue = '';
      }
    }
  }
</script>

<style scoped lang="scss">
  @import "~@/assets/css/common";
  .form{
    width: 700px;
    .form-tips{
      font-size: 12px;
      color: $gray;
    }
  }
  .upload-input{
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 2;
  }
  .form-tips{
    font-size: 12px;
    color: $gray;
    line-height: 16px;
    margin-top: 5px;
  }
  .form-select{
    margin-bottom: 20px;
    &:last-child{
      margin-bottom: 0;
    }
    .el-select{
      width: 170px;
      margin-right: 20px;
    }
    span{
      margin-right: 10px;
      cursor: pointer;
    }
  }
  .el-tag{
    color: #fff;
    background-color: #7CCDCC;
    border-color: #7CCDCC;
  }
  .el-tag + .el-tag {
    margin-left: 10px;
  }
  .button-new-tag {
    margin-left: 10px;
    height: 32px;
    line-height: 30px;
    padding-top: 0;
    padding-bottom: 0;
  }
  .input-new-tag {
    width: 90px;
    margin-left: 10px;
    vertical-align: bottom;
  }
</style>